An early-spring planting plan under cover
Last lesson was soil temperature, what I check and how I overdo it. Today we're putting all of it together: what actually goes in the ground (or the cold frame, or under the row cover) in those first weeks of the year, and in what order.
This is the lesson where everything from the last nine comes together. So if you skipped ahead to this one, go back. I'm not going to re-explain venting or fabric weight here.
Start with what your family actually eats
I'll say this every time I get the chance: grow what people in your house will eat. Early spring under cover is not the place to experiment with something nobody's excited about. It's cold, the light's still weak, and you want your effort going toward crops that earn their keep.
For us that's spinach, lettuce, and root crops. Every year. They're the ones that genuinely want cool soil and don't sulk under a cover. If your family eats a lot of something else cold-tolerant, plant that instead. This isn't a script, it's a shape.
The rough order I plant in
Here's what actually happens on my calendar, working backward from average last frost (which, remember, is a suggestion, not a promise around here):
6 weeks before last frost, in the cold frame: Spinach and lettuce direct-seeded straight into the frame soil. Radishes too, if you like them, they're about the fastest payoff you'll get all season. Soil temp needs to be reading at least in the mid-40s at planting depth, not just the air.
4 weeks before last frost, under row cover on hoops: Carrots, beets, peas. These can handle the cover-and-uncover routine we talked about a few lessons back. Peas especially don't mind a cold snap, they just sit and wait it out.
2 weeks before last frost, still watching the sky: This is when I'll start hardening off anything I started indoors, moving trays out to the cold frame during the day and back in at night. Not planting yet. Just getting them ready.
After last frost, and I mean after, not on the calendar date: Everything tender. Tomatoes, squash, beans. Even then, I keep the row cover fabric folded up on the shelf in the shed, not put away for the season, because a late cold snap in this valley will absolutely happen and catch you feeling confident.
The mistake that's easy to make (I made it)
The thing that trips people up is not the timing, it's the space. You get excited reading about how deep your beds should be and how much cold-tolerant stuff you can cram in early, and you don't stop to do the actual math on volume.
I did this with my first raised bed. I'd read up on soil depth for root crops, decided deeper was better, and built the thing a foot deeper than it needed to be without ever running the numbers on how much dirt that actually meant. Turned out to be eleven wheelbarrow loads. I filled what I had, ran out, and had to make a second run to Macey's for bagged soil because I'd underestimated by that much. I kept the bed, it works fine, but now before I build anything I sit down and actually calculate cubic feet first. Length times width times depth, divided by 27 for cubic yards if you're buying bulk, or check the bag coverage if you're buying bagged. Takes five minutes and saves you a second trip.
Same logic applies to your early planting plan. Before you seed anything, walk your cold frame and your covered rows and figure out square footage per crop. Spinach and lettuce you can crowd. Carrots and beets want a little more room to size up. Don't find out you're short on space halfway through planting.
A practical way to lay it out
Grab a piece of paper (I still do this on paper, not an app) and sketch your cold frame and your hooped rows as simple rectangles. Pencil in what goes where and when, working from the schedule above. Leave yourself margin, both in timing and in space, because something will run long or the weather will do something rude.
Buy decent soil for whatever you're filling new. This is the one place I don't cheap out. You can build a cold frame out of a scrap window and old lumber (we did), but garbage dirt will undercut everything else you do right.
One caution worth repeating
Don't plant tender stuff early just because the cover makes you feel safe. The cover buys you a few degrees, not immunity. A cold frame or row cover will get you through light frost, not a hard one, and if you plant tomatoes under cover in April thinking you've beaten the system, you probably haven't. I learned that the hard way with actual tomatoes in the actual ground, no cover at all, and I still keep that frost calendar taped inside the shed door.
Before next time: Sketch your own bed layout with rough planting dates penciled in, and actually run the soil volume math on anything you're filling new this year.